Paper-feeding mechanism.



. l PATENTE) MAR. 12, 1907. i E. B. CRAM'. PAPER PEBDING MEGHANISM.

APPLIQATION FILED A113128. 1904.

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E. Bl CRAM: PAPER FEEDING MBQHANISM.

APPLICATION FILED Ah. 28, 1904.

2 SHEETS-SHEET 2.

' amv UNITED sTATEs PATENT oEEroE.

EDWIN B. CRAM, OF BROOKLYN,

EW YORK, ASSIGNOR TO NEW YORK ADD- ING TYPEWRITER COMPANY, OF ORANGE, NEW JERSEY, A CORPORA- TION OF MISSOURI.

PAPER-FEEDING MECHANISM.

Specification of Letters Patent.

Patented March 12, 1907.

Application filed April 28,1904. Serial No. 205,305.

To /LZZ wir/0111, t mty concern.-

Beit known that I, EDWIN B. CRAM, a citizen of the United States, residing at Brook-A a type-writer to which the invention is ap-4 plied. 'Fig 2 is a side elevation of thevsu carriage. Figp3 is an end elevation of'the subcarriage. Fig. 4 is a section on theline 4' 4 of Fig. 2. l

The frame of the machine supports a transversely-movable carriage D, carrying a platen P, and a relative-ly movable subcarriage which supports-the paper-feed mechanism. The subcar-riage comprises the end plates -268 and 269 and the hase-piece 270, to which the end plates are secured. Fixed to the base-piece 270 is a curved paper-guide pi-ate 290, having its inner surface concentric with the surface of the platen. The rear edge 292 of the plate has a short curve which stiffens the plate and prevents the edge of the paper -from catching in passing onto the plate.

rIhe forward edge of the plate has apertures through which rolls EQG'eXtend and impinge against the platen, the forward edges being turned outwardly in n short curve, in the oase of thc rear edge. The rolls are rotatably mounted on a shaft 297, which is supported by arms 301, hinged to the base-piece 270 and having springs 302, which force the arms and rolls. toward the platen. '-lf'he arms 301 have projections 324 beyond their hinges for a purpose as will he hereinafter set forth. I'Iingeclto the paper-guide plate 290 is another guide-plate 305, having apertures for allowing rolls 307 to come in contact with the laten. The'r'olls 307 are rotatablysupported knuckle-joints which permit lost motion, whereby the arms 301 may be moved some distance without moving the arms 313.A Rigidly secured lto lthe upper edge of the plate 305 is a scale 315 for gaging the position of the paper. Springs 316 are fixed to the guided by y arms 313, connected 'to the arms 301 by A arms 313, their free ends bearing upon the arms 301.. On. the opposite side of the platen from the guide-plates 290 and 305 is a frame 318, carrying a paper-shelf 319. The frame is pivoted to the subcarriage andhas at-each end projections 323,'-which extend beneath projections 324.

rl'he paper-shelf has apertures to permit roll-s 325, journaled .on a shaft 326, fixed in the frame 318, to come in contact with the platen, the shelf having a shortcurve Where t meets the edge of the plate 290, for reasons Aas described in'connection withthat plate. Projections 332 are fixed-to the frare 318 at each end and have closed slots 333, in which Works a rod 335, iix'ed in the subcarriage end plates, whereby the frame is guided and limited in its movement. secured to the projections 332 and'to the rod 335, whereby the paper-shelf and rolls 325 are forced toward the laten.

A paper-guide sliielf338 for receiving and guiding the paper upwardly'as it leaves the platen extends the length of the platen and is so supported by the frame 318 that it may rockmto and out of contaotwith the platen, against which it is normally pressed 'by springs 339. Upon each end of the platen bears a paperclamp 342, which is fixed to a spring 343,

which is in turn fixed to a block-344, rotatablyV mounted on a shaft 346,` supported by the subcarriage end plates. The shaft 346 has a notch.347 and by means of screws carried by the blocks located to the rear of the centers of the blocks and engaging with the side of the notch the tension of the springs 343 canbe regulated. 'The ends of the clamps overhang the scale slightly, so that the paper in leaving the platen must pass under the clamps. To place a sheet-of machine, its edge is inserted etween lt'he rolls 325 and the platen, and the latter'is turned in the usual manner, thus forcing the paper forward. In its course the paper is the paper-shelf 319,-passes under the rolls 325, is guided by .the paper-guide plate 290, passes under the rolls 296, is guided y the upper paperuide late 305, passes under the rolls 307, t e sca e and the paperclamps 342, one of which bears upon each lateral margin of the paper and 1s finally discharged upon the paper-guide shelf 338 paper in the ICO 4 If it is desired to ad'ust the )a er in the J L P machine, the paper is grasped etween the ythumb and foreiinger of each hand, the little lingers resting upon rtho paper-shelf 319.

This operates to depress the paper-shelf and its supporting-frame and with it the rolls 325. Further depression of the frame causes the projections 323 to move upwardly and by cooperation with the projection 324 causes the arms 301 and .rolls 297 to move outwardly. Further downward movement of the pa ershelf 319 causes the lost motion in the joints between the arms 301 and 318 to be taken up and the two sets of arms to move outwardly together, thus moving the rolls 307 outwardly. The paper may now be adjusted by a gentle pull in the proper direction,

and upon the release ofthe pressure upon the lpaper-shelf the rolls will return to position 1n inverseorder to that in which they were removedto secure the sheet without disturbinits adjustment.

pplaten, su

l-aIplaten, of a rolls u on t e opposite si ithout limiting Inyselfto the precise oonstruction and arrangement shownfI claiml. In a type-writer, the combination wei-.th a platen, of a plurality of sets of rolls at one side of the platen, a jointed series of supports for said sets, and 'a spring secured to one of said supports and extending across the joint between s another of said supports, substantially as set forth. Y

2. In a type-writer, the combination with a platen, of a plurality of sets of'rolls, the supports of one set of rolls being jointed directly: tothe'supports of the other set, and means Vnormally 'pressing said supports toward said stantially as set forth.

3. In a type-writer, the combination with a platen, of a paper-shelf, a series of rolls about said platen, and means whereby pressure u on said paper-shelf operates to successive y remove said rolls from said platen, -A

said supports to lbear upon f shaft l1 .paper-shelf, a series of rolls rotatably mounted, and a screw' in said sion ol" said rolls from said platen, return said shelf to norupon thev exertion of pressulreupon said shelf, substantially as set forth.

6. In a type-writer', the combination with I platen, and means' pivots and adapted to bear against the platen, .s

and a pivotally-mounted paper-shelf havin its lower end extendingr beneath the platen and adaptedl to engage the lower ends of said pivoted arms.. I

8. In a type-writer, the eombination'with a platen, of a paperruido plate 290 fixed with relation to said p aten and another paper-guide plate hinged to the fixed guideplate and bilng on the platen, substantially as set forth. v s

'9. In a ty e-writer, the combination with a platen, an means for guiding and feeding paper beneath the platen; of a hinged paper.- igTurde shelf for receiving the paper as it comes om the platen, and means normally. pressing said shelf toward said platen, substantially as set forth.

; 10. In a type-writer, the combination with a platen, and means for guiding and feeding paper beneath the platen; of a hinged paperuide shelf for receiving the p aper as it comes om the platen, said shelf being so curved as to dischargethe paper normally pressing s platen,

`upwardly, Vandv means substantially asset forth.

11. In a type-Writer, the lcombination Awithl i a platen, of a pa er-clamp, a spring secured to said clamp a saidpla-ten', abl'ock secured to said s rin a aving a notch., on which said loe is and entering said notch whereby said block may. be turned about said-shaft and the teni spring regulated, substantially as set forth. I l In testimony whereof I have signed my name to this specification in the two subscribing witnesses.

EDWIN B. CRAM- Witnesses:

W. F. CARTER, WALTER N. Davis.

tending to press 1t tow-ardl aid shelf toward said ICO block presence of 

